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- /* Copyright (C) 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
-
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
-
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If
- not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- Cambridge, MA 02139, USA. */
-
- #include <ansidecl.h>
- #include <errno.h>
- #include <stddef.h>
- #include <unistd.h>
- #include <hurd.h>
-
- /* Make a link to FROM called TO. */
- int
- DEFUN(__link, (from, to), CONST char *from AND CONST char *to)
- {
- error_t err;
- file_t oldfile, linknode, todir;
- char *toname;
-
- oldfile = __file_name_lookup (from, 0, 0);
- if (oldfile == MACH_PORT_NULL)
- return -1;
-
- /* The file_getlinknode RPC returns the port that should be passed to
- the receiving filesystem (the one containing TODIR) in dir_link. */
-
- err = __file_getlinknode (oldfile, &linknode);
- __mach_port_deallocate (__mach_task_self (), oldfile);
- if (err)
- return __hurd_fail (err);
-
- todir = __file_name_split (to, &toname);
- if (todir != MACH_PORT_NULL)
- {
- err = __dir_link (linknode, todir, toname);
- __mach_port_deallocate (__mach_task_self (), todir);
- }
- __mach_port_deallocate (__mach_task_self (), linknode);
- if (todir == MACH_PORT_NULL)
- return -1;
-
- if (err)
- return __hurd_fail (err);
- return 0;
- }
-